He suggested the Iranians thought they could "do what they want" since negotiating a nuclear deal with world powers in 2015.

Mr Trump arrived in Israel from Saudi Arabia, where he sought to win Arab states' support for fighting extremism.

He has called for a peace deal between Israel and the Palestinians.

However, he has been vague about what form it should take, saying he prefers to leave it to both sides to decide between them in direct talks.

The two-day visit to Israel forms part of Mr Trump's first foreign trip as US president.

So, just what did Trump's note say?

Why has Trump been so harsh on Iran?

Thumbs up and other 'controversies'

What exactly did Trump say about Iran?

Speaking in Jerusalem, he said Iran had negotiated a "fantastic deal" with his predecessor, Barack Obama, winning "a lifeline and prosperity".

But "instead of saying thank you", the Iranians were backing terrorism, he said. In a speech earlier on Monday, he accused Iran of "deadly funding, training and equipping of terrorists and militias".

Media captionNetanyahu extols Trump for reasserting US leadership in the Mid-East